Computers and Concrete

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IBEM analyses on half-cell potential measurement for NDE of rebar corrosion

  • Kyung, Je-Woon (Department of Architectural Environmental Engineering, Hanyang University) ;
  • Tae, Sung-Ho (School of Architecture & Architectural Engineering, Hanyang University) ;
  • Lee, Han-Seung (School of Architecture & Architectural Engineering, Hanyang University) ;
  • Alver, Yalcin (Graduate School of Science and Technology, Kumamoto University) ;
  • Yoo, Jo-Hyeong (Department of Architectural Environmental Engineering, Hanyang University)
  • Received : 2006.11.16
  • Accepted : 2007.08.07
  • Published : 2007.08.25
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Abstract

Corrosion of Reinforcement (rebar) is nondestructively estimated by the half-cell potential measurement. As is the case with other nondestructive testings (NDT), understanding of the underlying principles should be clarified in order to obtain meaningful results. Therefore, the measurement of potentials in concrete is analytically investigated. The effect of internal defects on the potentials measured is clarified numerically by the boundary element method (BEM). Thus, a simplified inversion by BEM is applied to convert the potentials on concrete surface to those on rebars, taking into account the concrete resistivity. Because the potentials measured on concrete surface are so sensitive to moisture content, concrete resistivity and surface condition, an inverse procedure to convert the potentials on concrete surface into those on rebars is developed on the basis of BEM. It is found that ASTM criterion is practically applicable to estimate corrosion from the potential values converted. In experiments, an applicability of the procedure is examined by accelerated corrosion tests of reinforced concrete (RC) slabs. For practical use, the procedure is developed where results of IBEM are visualized by VRML (Virtual Reality modeling Language) in three-dimensional space.

Keywords

References

  1. Andrade, C. and Alonso, C. (2001), "On-site measurements of corrosion rate of reinforcements", Const. Bldg. Mater., 15(2-3), 141-145. https://doi.org/10.1016/S0950-0618(00)00063-5
  2. Aoki, S., Kishimoto, K and Sakata, M. (1990), "Boundary element analysis of galvanic corrosion", Corrosion Science, 30(2-3), 299-311. https://doi.org/10.1016/0010-938X(90)90081-F
  3. ASTM C876 (1991), Standards Test Method for Half Cell Potentials of Reinforcing Steel in Concrete.
  4. Brebbia, C. A. (1978), The Boundary Element Method for Engineers, Pentech Press Ltd., London.
  5. Cederquist, S. C. (1999), "Repairing america's deteriorating bridges", Materials Performance, 38(5), 20.
  6. Chris, M. and Bruce, C. (1997), Teach yourself VRML2 in 21 days, San.net, NY.
  7. Committee on Cost of Corrosion in Japan, (2001), Report on Cost of Corrosion in Japan, Japan Society of Corrosion Engineering and Japan Association of Corrosion Control.
  8. Dubravka, B., Dunja, M. and Dalibor, S. (2000), "Non-destructive corrosion rate monitoring for reinforced concrete structures", Proceedings of 15th WCNDT, Roma, October.
  9. Emmons, P. H. and Vaysburd, A. M. (1997), "Corrosion protection in concrete repair: myth and reality", Concrete International, 19(3), 47-56.
  10. Elsener, B. (2001), "Half-cell potential mapping to assess repair work on RC structures", Const. Boldg. Mater., 15(2-3), 133-139. https://doi.org/10.1016/S0950-0618(00)00062-3
  11. FHWA (1999-2001), Corrosion Cost and Preventive Strategies in the United States, FHWA-RD-01-156.
  12. Hartman, J. (1996), VRML 2.0 Handbook, Addison-Wesley, NY.
  13. Jaggi, S., Bohni, H. and Elesner, B. (2001), "Macrocell corrosion of steel in concrete-experiments and numerical modelling", Proceedings of Eurocorr 2001, Milan, September-October.
  14. Kobayashi, K. and Miyagawa, T. (2001), "Study on estimation of corrosion rate of reinforcing steel in concrete by measuring polarization resistance", Proceedings of JSCE, Kumamoto, October.
  15. Koyama, R., Yajima, T. and Uomoto, T. (1995), "Prediction of steel corrosion by spontaneous potential measurement", Proceedings of Japan Concrete Institute, Hiroshima, June.
  16. Kranc, S. C, Sagues, A. A. (2001), "Detailed modeling of corrosion macrocells on steel reinforcing in concrete", Corrosion Science, 43(4), 1355-1372. https://doi.org/10.1016/S0010-938X(00)00158-X
  17. Misra, S. and Uomoto, T. (1990), "Corrosion of rebars under different corrosions", Proceedings of Japan Concrete Institute, Sapporo, June.
  18. Otomaru, M., Murakami, Y. and Ohtsu, M. (1990), "Half-cell potentials analysis by BEM for corrosion monitoring", Proceedings of Japan Concrete Institute, Sapporo, June.
  19. Ohshiro, T., Tanikawa, S. and Goto, N. (1991), "A study on corrosion evaluation of steel reinforcements in concrete" , Proceedings of Japan Concrete Institute, Kobe, June.
  20. Ohtsu, M. and Yamamura, H. (1991), "Charge simulation method of half-cell potential for corrosion evaluation", Proceedings of Japan Concrete Institute, Kobe, June.
  21. Ohtsu, M. and Yamamoto, T. (1997), "Compensation procedure for half-cell potential measurement", Construction and Building Material, 11(7-8), 395-402. https://doi.org/10.1016/S0950-0618(97)00028-7
  22. Tamura, H., Nagayama, M. and Shimozawa, K. (1992), "A case study on reinforcement corrosion in an existing Rc structure", Proceedings of Japan Concrete Institute, Nigata, June.
  23. Sung, S. H., Kyung, J. W. and Ujiro, J. (2006), "Service life estimation of concrete structures reinforced with Crbearing rebars under macrocell corrosion conditions induced by cracking in cover concrete", The Iron and Steel Institute of Japan International, 47(6), 875-882.
  24. Kyung, J. W., Yokota, M., Leelalerkiet, V. and Ohtsu, M. (2005), "Visual reality presentation for nondestructive evaluation of rebar corrosion in concrete based on inverse BEM", The Korean Society for Nondestructive Testing, 25(3), 157-162.
  25. Hietpas, K., Ervin, B., Banasiak. J., Pointer, D., Kuchma, D. A., Reis, H. and Bernhard, T. (2005), "Ultrasonics and electromagnetics for a wireless corrosion sensing system embedded in structrual concrete", Smart Struct. Sys., 1(3), 267-282. https://doi.org/10.12989/sss.2005.1.3.267
  26. Maurel, O. (2005), "Relation between total degradation of steel concrete bond and degree of corrosion of RC beams experimental and computational studies", Comput. Concrete, 2(1), 1-18. https://doi.org/10.12989/cac.2005.2.1.001

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